Open study

is now brainly

With Brainly you can:

  • Get homework help from millions of students and moderators
  • Learn how to solve problems with step-by-step explanations
  • Share your knowledge and earn points by helping other students
  • Learn anywhere, anytime with the Brainly app!

A community for students.

Find the area of an equilateral triangle with side of length 18. (Round your answer to one decimal place.)

Mathematics
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

Join Brainly to access

this expert answer

SEE EXPERT ANSWER

To see the expert answer you'll need to create a free account at Brainly

Area= 1/2 base x height tan(60)=h/18 h=18tan(60) right?
should i be using law of sines
why use law of sines?

Not the answer you are looking for?

Search for more explanations.

Ask your own question

Other answers:

wait...by law of sines do you mean \[\frac{a}{\sin A} = \frac b{\sin B} = \frac c{\sin C}\]
yes, i have three angles (60) and three sides) so the how would i then find the height
use pythagorean theorem...you have equilateral triangle |dw:1352707222314:dw|
so the height would cut your triangle into two equal parts..|dw:1352707262694:dw| can you see how to get the height now?
15.6?
yes
now use your 1/2 bh
A=(1/2)(18)15.6)
yes
by the way.. you can also use your solution a while ago... 18tan (60) you don't need law of sines...just use a calculator for that
140.4units squared
yes
and that solution from earlier would then give me the height?
hmm wait...something's wrong with it...let me find it first
should it be 9 instead of 18
yes it should be 9

Not the answer you are looking for?

Search for more explanations.

Ask your own question